664050304 has 32 divisors (see below), whose sum is σ = 1392544800. Its totient is φ = 314548992.

The previous prime is 664050281. The next prime is 664050313. The reversal of 664050304 is 403050466.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134092 + ... + 138955.

It is an arithmetic number, because the mean of its divisors is an integer number (43517025).

Almost surely, 2^664050304 is an apocalyptic number.

664050304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

664050304 is an abundant number, since it is smaller than the sum of its proper divisors (728494496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664050304 is a wasteful number, since it uses less digits than its factorization.

664050304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273080 (or 273068 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 664050304 is about 25769.1735218652. The cubic root of 664050304 is about 872.4361648193.

The spelling of 664050304 in words is "six hundred sixty-four million, fifty thousand, three hundred four".